White stuff on trail?

[Mccabe5]

Anyone know what the white mineral like stuff is on the trail? looks like it might be coming from rain that has dried up on the trail. Saw it often between Damascus and Atkins the first week in Sept. 2015.
Thanks.

[Slo-go'en]

it might be dried up something, but surely not rain! The rain water would have to be super saturated with something to leave a film behind once it evaporates. Without a good close up photo, can't even hazard a guess.

[rocketsocks]

Salt of Peter.

[rocketsocks]

Salt of Peter.

??? maybe from a horse.

[rocketsocks]

...but i'm just guessin'

Calcium nitrate, also called Norgessalpeter (Norwegian saltpeter), is the inorganic compound with the formula Ca(NO₃)₂. This colourless salt absorbs moisture from the air and is commonly found as a tetrahydrate. It is mainly used as a component in fertilizersbut has other applications. Nitrocalcite is the name for a mineral which is a hydrated calcium nitrate that forms as an efflorescence where manure contacts concrete orlimestone in a dry environment as in stables or caverns. A variety of related salts are known including calcium ammonium nitrate decahydrate and calcium potassium nitrate decahydrate.^[1]

https://en.wikipedia.org/wiki/Calcium_nitrate

[Mccabe5]

...but i'm just guessin'

Calcium nitrate, also called Norgessalpeter (Norwegian saltpeter), is the inorganic compound with the formula Ca(NO₃)₂. This colourless salt absorbs moisture from the air and is commonly found as a tetrahydrate. It is mainly used as a component in fertilizersbut has other applications. Nitrocalcite is the name for a mineral which is a hydrated calcium nitrate that forms as an efflorescence where manure contacts concrete orlimestone in a dry environment as in stables or caverns. A variety of related salts are known including calcium ammonium nitrate decahydrate and calcium potassium nitrate decahydrate.^[1]

https://en.wikipedia.org/wiki/Calcium_nitrate

right. Thx.
I bet you are